US2317224A - Portable riveter suspension - Google Patents

Description

A. E. RYLANDER PORTABLE RIVETER SUSPENS ION 2 Sheets-Sheet 1 April 20, 1943.

Filed April 3, 1940 April 1943. A. E. RYLANDER 2,317,224

PORTABLE RIVETER SUSPENSION Filed April 3, 1940 2 Sheets-Sheet 2 INVENTOR. fi/vpefw 5 En ma e ATTORNEY.

Patented Apr. 20, 1943 UNITED STATES PATENT OFFICE PORTABLE RIVETER SUSPENSION Andrew E. Rylander, Detroit, Mich., assignor to The Midland Steel Products Company, Cleveland, Ohio, a corporation of Ohio Application April 3, 1940, Serial No. 327,596

3 Claims.

This invention relates to new and useful improvements in suspensions for tools too heavy for entire manual positioning relative to work to facilitate moving and tilting of the tool into engagement with work at diiierent locations, angles and in different planes.

Another object of the invention is to provide universal interchangeable attachment means adaptable for the connection of various types of suspension brackets to the tool.

A further object of the invention is to provide novel suspension means enabling the tool to be normally suspended and rocked both in its own plane and sidewise or transversely thereof with minimum manual effort.

Other objects and advantages of the invention will become apparent during the course of the following description.

In the accompanying drawings forming a part of the application and wherein like numerals are employed to designate like parts throughout the several views,

Fig. 1 is a perspective view of a cross trolley arrangement showing one form of suspension bracket for the tool,

Fig. 2 is a side elevation of the tool showing another form of bracket,

Fig. 3 is an enlarged side elevation of the tool showing another form of combination bracket embodying-two axes,

Fig. 4 is a perspective view of the tool having a bracket with a neutral axis disposed between the jaws of the tool for vertical and horizontal disposition of the jaws,

Fig. 5 is a top plan of the tool showing the offset disposition of the lower jaw,

Referring now more in detail to the drawings and particularly to Figs. and 5, wherein the peculiar characteristics of the tool will be better understood. it will be appreciated that the tool in this instance comprises a substantially C- shaped hydraulic rivet heading yoke composed of a very heavy and stout shank 6 provided with a pair of spaced substantially parallel jaws I and 8. The relative lower jaw 8 has an offset portion as shown with its free anvil end in alignment with a hydraulic ram to be presently described. It will be noted that the shank of the yoke is about twice as thick and heavy as its jaws for effective resistance against breakage under stress of tons of pressure exerted by and upon the tool as well as to effect proper balance between the parts of the tool. It will also be noted that the jaws l and 6 gradually increase in depth toward the shank 6, whereby this increases the overweight of the shank portion of the tool over the jaw portions, so that if the tool is suspended from a point in either jaw, the increased weight of the shank portion will cause the shank portion to move downward under the influence of gravity to cause the jaws to point upward. By shifting this point of suspension, the tool can be hung to cause the jaws to extend in any direction desired. However, in this instance it is desired that the jaws be normally disposed substantially horizontally, and to counterbalance the excessive weight of the shank portion 6, a hydraulic cylinder 9 is mounted in upright position substantially in the plane of the tool upon the upper outer end of the upper jaw l and is provided with a hydraulic ram Iil operating through the upper jaw for cooperation with an anvil or rivet set ll provided upon the inner face of the free end of the lower jaw 3. Flexible hose connections l2 are provided for the hydraulic cylinder 9 for the entrance and exitof fluid to raise and. lower the ram l!) in the riveting operations. This tool thus equipped, weighs in the neighborhool of '75 pounds and consequently could not be handled by the average worker throughout normal working hours, unless it is suspended in a manner to be steered or guided to its proper working position with the minimum physical exertion and all of the dead Weight of the tool is removed from the operator. The side of the hydraulic cylinder 9 is provided with a handle l3 having an electric push button it which controls a circuit to an electric valve, not shown, for controlling the flow or fluid under pressure to and from opposite ends of the ram cylinder. In some installations the handle I3 is provided on the.

outer end of the hydraulic cylinder as shown in Fig. 4, and in instances may be connected with the shank 6 of the yoke as shown in dotted lines in Fig. 1. In Fig. 2 a handle may be formed on the outer end of the bracket where the dotted line eye 29 is shown.

This yoke finds use in so many different places requiring a variety of means of suspension to en able it to be supported in approximately its.

working angle to be rapidly moved into Working position, that it is advantageous to provide the yoke with universal means whereby suspension brackets of diiierent typescan be rapidly interchanged on the yoke for shifting its fulcrum points and suspending it with its jaws normally disposed at any desired angle to the horizontal, best suited to rapid engagement with the work.

For this purpose, the upper corner of the yoke or shank 6 is beveled at an angle of approximate- 1y 45 degrees, and the resulting inclined surface i5 is tapped with a pair of holes 25 to receive screws l6 for removably securing any one of a plurality of interchangeable suspension brackets H thereto. These brackets will be later described in further detail. A cable I8 is connected to the brackets and is wound upon the reel of the usual commercial spring balancer !9 which supports the yoke at any elevation to which it may be moved.

' In order that the yoke may be moved Without undue physical exertion to any position within a comparatively large area, the balancer E3 is suspended from a trolley 23 which is substantiah ly U-shaped with its trolley wheels rolling upon the lower flange of a suspended floating I beam 23, on opposite sides of its web. This beam is suspended by a pair of U-shaped carriages 2|. each of which embraces the lower half of an I beam tram rail 22, and is provided with a pair of rollers disposed at each side of the web thereof to roll upon the flanges thereof as shown in Fig. 1. The tram rails are of course arranged parallel to each other and extend lengthwise of the area to be Worked. Thus, the suspended yoke can be moved rectilinearly in one direction upon the carriages 2| and also rectilinearly in a direc tion at right angles thereto upon the trolley 2 to locate the yoke adjacent to work located within the range of the tram rails and suspended beam 28.

Referring to Fig. 2, it will be noted that one form of bracket or flat plate 24 is provided with a pair of holes registering with the threaded holes 25 in the yoke to be fastened thereto by means of a pair of screws I6. One end of the plate is provided with an angularly disposed integral eye 28, which is arranged either above the shank 6 to provide a horizontal axis 26 for suspending the yoke with its jaws substantially parallel, or to dis-pose the jaws at a slight downward inclination, if the plate 24 is reversed end for end, so that the eye 26' is arranged as shown in dotted lines. A swivel 21 is connected with the suspension cable l8 and is hooked into the eye to provide a horizontal axis. The yoke can then be tilted on the horizontal axis 26 provided by the eye 26, to facilitate engagement of the jaws with the'work.

In Fig. 3, the yoke is provided with the same inclined surface I5 and a pair of tapped openings 25 to receive the same pair of screws l6 for fastening a different form of bracket 28 to the yoke. This bracket has one end 23 angularly disposed to be arranged parallel with the shank 6, or if the bracket is inverted and secured to the inclined surface IS, the end 29 will extend rearwardly of the shank at right angles thereto. This end of the bracket is provided with an integral stud or pivot pin 3|] extending at right angles to the portion 29 and terminates in a reduced threaded end to receive a washer and nut. An arcuate arm 3| has its lower end 32 formed as a bearing and its upper end 33 curved to dispose its upper end above the shank 5. The upper end of the arm 3| terminates in an eyelet fastened to the suspension cable I8 to provide a horizontal axis 34 arranged at right angles to the pivot 30. Thus, the suspension includes a pair of horizontal pivots arranged at right angles to each other, whereby the yoke can be rocked up or down in its vertical plane on its axis 34, or sidewise on. a pivot 30 in a plane normal to that of the yoke to meet work of various angularity in two dif ferent planes.

' between the yoke jaws.

By taking the arm 3| off of the pivot and 7 replacing it, end for end, the arm 3| will curve outwardly away from the yoke, thereby causing its eyelet axis 34 to be disposed further away from the weight of the yoke and hydraulic cylinder.

Consequently, when the yoke is suspended in this manner, it will swing downwardly from the position shown in Fig. 3 so that the jaws and 8 will hang down substantially vertically with the pivot 39 standing upright. This pivot 30 therefore becomes a vertical pivot, so that the yoke can be moved about a vertical axis without a swivel and without twisting the suspension cable, while it can also be rocked upon the horizontal axis 34 to change the angularity of the jaws from the vertical.

Fig. 4 illustrates a form of suspension means using the same general form of means for securing the suspension to the yoke, and provides for arranging a horizontal axis between the jaws, whereby they can be rocked forward andbackward to dispose the jaws vertically or horizontally. The yoke 6 in this instance, is provided with the inclined heel 15 to which a bracket 35 is removably secured by the same pair of screws IS. The bracket is provided upon opposite sides with elongated right angular arms 36 which extend diagonally across the yoke and terminate in ends having registering apertures 31 in a plane A sleeve 33 is disposed between the apertured ends of the arms 36 to prevent their inward relative movement and a suspension loop 33 has a horizontal axis portion extending through the sleeve 38 and apertures 37 in the arms to support the yoke on a horizontal axis. The loop 39 includes a pair of vertical parallel arm portions which are suspended from the cable I8, and the loop is large enough to permit the hydraulic cylinder 9 or the shank and jaws of the yoke, to move between the arms of the loop when the yoke is swung forward or backward on the axis 40.

It will be obvious that any of the suspension brackets shown and others suggested thereby can i be removed from the yoke and interchanged with one another to provide a suspension adapted to mount the yoke in the most convenient position to swing upon axes to engage the jaws with any type of work with the least manual exertion. The means for connecting the brackets with the yoke being simple and interchangeable, provide for making rapid changes to the form of suspension desired.

It will of course be understood that various changes in the size, shape and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the appended claims.

I claim:

1. lool suspension comprising a tool having a beveled corner with a pair of tapped holes therein, a reversible bracket having registering holes seated upon said corner and secured thereto with a pair of screws, and said bracket having one end extended beyond the corner of the tool in the direction of said beveled corner and there provided with a perforated portion disposed to suspend the tool in different positions.

2. The combination with a riveter yoke including a shank and a pair of jaws, the upper corner of said yoke having an inclined surface, a reversible bracket secured to said surface and havmg one end extending in the plane of said inclined surface beyond said corner of the yoke and terminating in an angularly disposed portion with an integral eye which by reversing the bracket can be made to extend beyond the yoke for causing it to hang in different positions, and suspension means for the yoke connected with said eye.

3. Tool suspension comprising a C-shaped riveter yoke having a pair of spaced jaws supported in horizontal planes and oscillated upon an axis transverse to the jaws, one of said jaws having an inclined plane surface with a pair of tapped holes therein, a reversible suspension 10 bracket having registering holes seated upon said inclined surface and having a portion thereof extended laterally beyond the corner of said yoke and in the direction of said inclined surface above the jaws, and a pair of screws for securing the bracket to the yoke whereby either end of the bracket can be made to project beyond the yoke for causing it to hang in different positions.

ANDREW E. RYLANDER.

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